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W. NOTTBERG sa 0. SCHMITT. AUTOMATIC LUBRIGATOR.

No. 424,343. Patented Mar. Z5, 1890.

Charles Schm JKM;

N. PETERS. Phom-Lnhagnphsr. washington. 0.1:.

` UNITED STATES IVILLIAM NOTTBERG AND CHARLES SCHMITT, OF KANSAS CITY, MISSOURI; SAID NOTTBERG ASSIGNORv TO SAID SCHMITT.

AUTOMATIC LUBRICATOR.

vSPIE:CIIEICA'LION forming part of Letters Patent No. 424,343, dated March 25,1890. j

Y Application led October 1, 1889. Serial No. 325,634. (No model.) I

To all whom it may concern:

Be it known that we, WILLIAM NOTTBERG and CHARLES SCHMITT, both of Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Automatic Lubricators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming apart of this speci-= cation.

Our invention relates to an improved device for lubricating elevator or other cylinders; and our invention consists of features of novelty7 hereinafter described, and pointed out in the claims.

Figure I is an elevation of our improved device, showing parts in section. Fig. II is a detail top view of the piston and supplypipe.

Fig. III is a sectional view showingr const-ruction of the valves. Fig. IV is a side elevation showing our improved lubricator in position. Figs. V and VI are perspective views of brackets to which portions of the device are attached. Fig. VII is a detail side elevation of the pendent trip-lever that operates the piston of the lubricator.

Referring to the drawings, 1 represents the cylinder of a hydraulic elevator.

2 represents the piston-rod, to the outer end of which is attached the usual pulley 3, over which the cable 4 that raises and lowers the elevator-cab travels. The piston-rod 2 is connected to the pulley 3 by means of a crosshead 5, to which the pulley is journaled. The

outer end of the piston-rod and the pulley are supported by a track 6, on which a wheel 7, attached to the crosshead, travels back and forth by the action of the piston-rod. The track 6 and outer end of the cylinder are supported by posts 8.

9 represent-s a bar, to which various parts of the lubricator are attached. This bar is secured to the side of the track 6 by means of bolts 10.

11 represents the oilsupply tank, which may be located at any desired point. The tank may be connected with the lubricator proper by means of a connecting-pipe 12. The outiiow from the supply-tank maybe regulated by means of a stop-cock 13. The oil passes down through a pipe 14, enters into an elbow 15, then passes up through a glass tube 16, secured at its lower end to the elbow 15, and at its upper end to a head 17, and. down through a pipe 18 in the direction shown by arrows in Fig. I. The oil passes from the pipe 18 into a pipe 19, from whence it. is forced (by a device hereinafter described) into the cylinder.

2O represents a brace connecting the elbow 15 with the head 17.

21 represents a plug situated at the bottom of the elbow 15, which may be removed when it is desired to clean the same. The plug 21 is provided with a stop-cock 2 2, by .which means the elbow and tube 16 may be drained.

23 represents a plug in the head 17, that may also be removed whenV it is desired to clean the device.

24. represents a lever pivoted to the side of` the track 6 at a point 25. The lever has an upper extension 26, extending for some distance above the track, the rear side of said extension having a bevel-shaped face 27. The lever has a lower extension 23, provided with an adjustable weight 29, which may be moved up or down on the extension and secured at any desired point by meansof setscrew 30.

y 31 represents holes in the lower extension.

of the lever, to which one end of a spring 32 may be attached. The other end of the spring 32 is attached to one end of a threaded rod 33, the other end of the threaded rod passing through a hole in a bracket 34, said bracket being secured to t-he track 6 and bar 9.

35 represents a thumb-nut on the rod 33, by which the tension of the spring 32 is regu lated.

36 represents-a bracket secured to the lever 24.

37 represents a set-screw, which engages with the bracket 36, which has a screwthreaded opening for the reception of the same. The set-screw 37 regulates the forward movement of the upper extension 26 of the lever 24.

38 represents a bracket pivoted to the upper extension 26. To this bracket is secured the outer end of a horizontal pistonl 39. The inner end of the piston 39 works in a horizontal cylinder 40, which is formed of one rod end of the pipe 19. To the cross-head 5 is secured a downward-extending bracket 41, to which is pivoted a pendent trip-lever 42, the rear of the trip-lever being formed with a bevel-shaped face 43. 44 represents a valve placed in the pipe 18, and 45 a valve in the pipe 19. These valves are provided with guides 46, that guide them to their seats, and have openings 47, into which the upper guides recede when the valves are open. l

`The operation is as follows: The oil passes from the tank 11 to the pipe 19 in the manner described, the Weight of the oil opening the valve 44 in the lower end of the pipe 18. As the piston-rod 2 travels forward, the triplever 42 travels with it, and as the trip-lever 42 comes in contact with the upper extension of the lever 24 the lever 24 is canted on its pivot into the position shown in the dotted lines in Fig. I, thus forcing the piston 39 forward in the cylinder 40, forcing the oil before it in the pipe 19 out through the valve '45 and into the cylinder. iVhen the lever 24 has been sufficiently canted, and the piston 39 thus forced forward to the desired limit, the trip-lever 42 passes over the upper end of the lever 24, releasing the same and permitting the spring 32 and weight 29 to force the lever 24 back to an upright position, and thus withdraw the piston 39 the required distance to let a fresh charge of oil pass in from the pipe 18, the valve 44 in the pipe 18 preventing any backward movement of the oil when the piston is forced forward. When the piston-rod 2 again recedes to the posi- `working in the cylinder, lever to which the tion shown in Fig. IV, the trip-lever 42, by means of its being pivoted, swings up and passes over the lever 24, bothl of the vlevers being beveled to avoid friction. By means of the setscrew 37 the forward movement of the piston 39 is regulated, which determines the amount of oil forced'into the cylinder at any one time. l.

By the use of our improved device the oil is forced into the cylinder before the charge of water enters, and the cylinder is thus lu bricated while the elevator is in operation.

We claim as our invention- 1. The combination ofV an oil-supply pipe, a horizontal cylinder in connection with said pipe, a piston working in said cylinder, a lever 24, having an upper extension 26, a bracket 38, pivoted to the upper extension of the lever andcoupling the piston to the latter, and means for working the lever, substantially as described, and for the purpose set forth.

2. The combination of an oil-supply pipe, a horizontal cylinder in connection with said pipe, a piston working in said cylinder, a lever 24, having an upper extension 26, the outer end of said piston being pivoted to the upper extension of the lever, and means for rocking said lever, substantially as descrlbed, and for the purpose set forth.

3. The combination of an oil-supply pipe,

a horizontal cylinder in connection with said pipe, a piston working in said cylinder, a lever 24, having an upper extension 26, a bracket 38, the outer end of the piston being pivoted 7 by the bracket to the upper extension of the lever 24, and a pendent trip-lever 42, attached to a moving object for the purpose of rocking the lever 24, and thus operating said piston, substantially as described, and for the pur- 7 pose set forth.

4. The combination of a horizontal cylinder 40, piston 39, working in the cylinder, 1ever 24, to the upper extension 26 of which the piston is pivoted, means for rocking the le- 8 ver, and a weight on the lower extension 28 of said lever, substantially as described, andV for the purpose set forth.

5. The combination of a horizontal cylinder 40, piston 39, Working in the cylinder, lever 24, to which the piston is attached, means for rocking the lever, bracket 36, secured to the latter, and aset-screw 37, working through the bracket for the purpose of regulating the outward movement of the piston, substan- 9c tially as described, and for the purpose set forth.

6. The combination of a horizontal cylinder, piston working in the cylinder, lever to the upper extension 26 of which the pistonis 95 pivoted, means for rocking the lever, and a' spring 32, secured to the lower extension 28 of the lever for returning the lever to its original position, substantially as described, and for the purpose set forth.

7. The combination of a cylinder, piston piston is pivoted, means for rocking the lever, a spring 32, a screw-threaded rod 33, and a nut 35 to regulate the tension of p the spring, 1o` substantially as described, and for the purpose set forth.

8. The combination of a cylinder 1, piston 2, cross-head 5, bracket 41, secured to the crosshead, lever 42, pivoted to the bracket, oil-sup- 1 n ply pipe, cylinder 40, secured to the pipe, piston 39, and a lever 24, to which the piston 39Y is pivoted and with which the lever 42 comes in contact at each stroke of the pistonA 2, substantially as described, and for the purpose I I: set forth.

9. The combination of the tank 11,pipes 12 14, tube 16, elbow 15, plug 21 in the elbow l5, head 17, having a plug l23, pipe 18, having a valve 44, a pipe 19, having a valve 45, a cyl- 12C inder on the pipe 19, and a piston 39, Working in said cylinder, substantially as described, and for the purpose set forth.v

` WILLIAM NCTTBERG.

CHARLES SCHMITT.

In presence of J As. E. KNIGHT, BAYARD T. BUCHANAN. 

